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| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /3814/CH7/EX7.1/Ex7_1.sce | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
| download | Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.gz Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.bz2 Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.zip | |
initial commit / add all books
Diffstat (limited to '3814/CH7/EX7.1/Ex7_1.sce')
| -rw-r--r-- | 3814/CH7/EX7.1/Ex7_1.sce | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/3814/CH7/EX7.1/Ex7_1.sce b/3814/CH7/EX7.1/Ex7_1.sce new file mode 100644 index 000000000..082157785 --- /dev/null +++ b/3814/CH7/EX7.1/Ex7_1.sce @@ -0,0 +1,27 @@ +// determine inlet and exit angles of blades mean diameter
+// ex 7.1 pgno. 169
+clc
+H=21.8 // head of turbine
+P=21 // MW power
+N=140 // number runs of rpm
+D1=4.5 // diameter in m
+Dh=2.0 // in meter
+nh=0.94 // efficiency
+nn= 0.88// efficiency in exit angles
+g=9.8
+M=(D1+Dh)/2 //mean diameter in m
+mprintf('Mean Diameter = %f m',M)
+w=(2*N*%pi)/60
+mprintf('\n w= %f rad/s',w)
+u=(w*M)/2
+mprintf('\n u=wr = %f m/s',u)
+Vlw=(nh*g*H)/u
+mprintf('\n Vlw = %f m/s',Vlw)
+Q=(P*1000*1000)/(nn*H*9800) // flow rate
+mprintf('\n Q=%f m3/s',Q)
+vf=(4*Q)/(%pi*((D1^2)-(Dh^2)))
+mprintf('\n Vf = %f m/s',vf)// velocity in m/s
+b1=vf/(u-Vlw) // tan b1
+mprintf(' \n tanb1 =%f degree ',atand(b1)) // inlet angles
+b2=vf/u // tan b2
+mprintf('\n b2= %f degree',atand(b2))// exit angles
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